//
//  DKContentContainerProtocol.h
//  Whistle
//
//  Created by ZhangAo on 16/5/26.
//  Copyright © 2016年 BookSir. All rights reserved.
//

#import <Foundation/Foundation.h>

@protocol DKContentContainerProtocol <NSObject>

@required

@property (nonatomic, assign) CGSize preferredContentSize;

@end
